CEFR C2 · MASTERY · TEACHER TOOLKIT
English Classroom
About This Toolkit
This is the C2-level volume in the EcoLingua teacher toolkit series, and the capstone of the CEFR sequence from A1 to C2. Where the C1 toolkit works at the level of academic and civic discourse, the C2 toolkit demands mastery: learners handle specialised registers — legal, diplomatic, scientific — evaluate sources critically (including AI-generated text), negotiate and mediate under simulated real-world constraints, and produce sophisticated research and position writing.
Each activity was authored by a partner institution and built around genuinely demanding, contested content. Together they place learners in the roles of negotiators, advocates, jurists, and researchers, requiring near-native precision, nuance, and control of register.
Partner Institutions
How to Use This Toolkit
Each activity plan follows the same predictable structure as the rest of the EcoLingua series, so you can move between levels and activities with ease.
The Structure of Each Activity Plan
In Section 4, each of the five activities opens as an expandable panel containing a consistent sequence: a language and ecological objective pair, an at-a-glance information strip (partner, time, skills, SDGs), a stage-by-stage procedure with suggested timings, the target vocabulary and structures, the interactive tasks used, and follow-up and assessment notes.
What Makes These C2
The C2 activities are pitched at mastery: near-native precision, control of specialised register, and critical evaluation of complex, contested material. Expect to teach:
- Specialised registers: legal, diplomatic, and scientific discourse used accurately and appropriately.
- Concession & nuance at scale: while one might concede that…, it does not follow that… / this is not to deny that…
- Evaluative & rhetorical sophistication: irony, understatement, emphasis, and precise qualification.
- Critical & source literacy: detecting bias, framing, and omission — including in AI-generated content.
- Advanced genres: position paper, research summary, legal submission, negotiated communiqué.
A Few Working Principles
- Trust the difficulty. These are genuinely hard, contested topics. At C2 the challenge is the point — learners rise to demanding content and register.
- Simulate the real thing. Tribunals, summits, and peer-teaching arenas ask learners to perform in authentic professional registers under realistic constraints.
- Read critically, including AI. C2 mastery now includes evaluating machine-generated text for bias, assumption, and omission — treat this as a core literacy.
- Adapt freely. Timings, roles, and homework are suggestions — a starting point for your own advanced classes, not a script.
Activities at a Glance
The five C2 activities in this toolkit, organised by partner institution and linked to their Sustainable Development Goals. Each targets CEFR C2 and pairs a complex, contested environmental theme with a specialised, mastery-level language focus.
| # | Activity | Partner | Ecological Theme | Language Focus | SDG |
|---|---|---|---|---|---|
| 1 | Technology & Sustainability: A Double-Edged Sword | BAUN · Türkiye | Technology's ecological paradox | Concessive markers · evaluative & speculative language | SDG 9 · 12 |
| 2 | Intergenerational Justice & Climate Change | BAUN · Türkiye | Climate justice & future generations | Legal register · rhetorical appeals · complex conditionals | SDG 13 · 16 |
| 3 | Voices from the Summit: Simulating International Negotiations | Rome Tor Vergata · Italy | International environmental diplomacy | Diplomatic register · negotiation · mediation | SDG 13 · 17 |
| 4 | Handle Electronic Waste: AI-Enhanced Research & Peer Teaching | Vilnius · Lithuania | E-waste & the circular economy | AI & source literacy · mediation · peer teaching | SDG 9 · 12 |
| 5 | The Politics of Climate Agreements: Success or Failure? | GAUN · Türkiye | Global climate governance | Diplomatic rhetoric · critical evaluation · summit simulation | SDG 13 · 17 |
Methodological Framework
The C2 activities share a common pedagogical foundation, distinguished by simulation, critical discourse analysis, and the demand for mastery-level register control.
Core Approaches
Simulation Pedagogy
Tribunals, summits, and negotiations place learners in authentic professional roles, requiring them to perform in specialised registers under realistic constraints.
CLIL & Interdisciplinary Analysis
Content draws on law, diplomacy, ethics, and technology, demanding that learners integrate knowledge across domains as they argue.
Critical Discourse & Source Literacy
Learners interrogate framing, bias, and omission in complex texts — including, at Activity 4, AI-generated content — as a core mastery competence.
Mediation & Peer Teaching
In line with the CEFR Companion Volume, learners relay, reconcile, and teach complex content to others, adapting register for different audiences.
Sustainability Competence: GreenComp
The activities align with GreenComp at its most demanding: systems & futures thinking, critical thinking, political agency, and collective action. At C2, learners do not merely evaluate solutions but negotiate, adjudicate, and advocate for them in realistic governance settings.
The C2 Language Profile
At C2, learners understand virtually everything they read or hear and express themselves with precision, nuance, and full register control. The toolkit foregrounds:
- Specialised registers: legal, diplomatic, and scientific discourse.
- High-level concession & qualification: while one might concede that…, this in no way entails…
- Rhetorical sophistication: emphasis, understatement, irony, and precise evaluation.
- Speculative & counterfactual reasoning: had the accord been binding, the trajectory might have differed markedly.
- Advanced genres: position paper, research summary, legal submission, negotiated communiqué.
Lesson Sequence Planner
A suggested order for teaching the five activities as an advanced module on technology, justice, diplomacy, and governance. Each activity also stands alone, and several span more than one lesson.
Suggested Teaching Order
Recycled Language Across the Module
| Language point | Introduced | Recycled & extended in |
|---|---|---|
| Concessive & evaluative markers | Activity 1 | Activities 2, 3 & 5 |
| Legal & rhetorical register | Activity 2 | Activities 3 & 5 |
| Diplomatic & negotiation register | Activity 3 | Activity 5 |
| Critical & AI source literacy | Activity 4 | Activity 5 |
| Mediation & peer teaching | Activity 4 | Activities 3 & 5 |
Activity Plans
The five C2 activities in full. Click any panel to expand its complete plan — objectives, procedure, target language, tasks, and follow-up.
Use concessive markers, evaluative expressions, and speculative conditionals to argue a nuanced, two-sided case and synthesise it in research writing.
Evaluate the paradox that technology is at once a driver of environmental harm and a source of solutions, resisting simple optimism or pessimism.
Approach
A panel debate leading to critical synthesis and research writing. The framing — solution or risk? savior or saboteur? — forces genuinely two-sided argument and the concessive, evaluative language that mastery requires.
Procedure
Target Language
Concessive: while it may be true that…, this does not entail… · Evaluative: a decisive advantage, a considerable liability, on balance · Speculative: were innovation to outpace regulation, the consequences might… · Vocabulary: innovation, rebound effect, planned obsolescence, decoupling, techno-optimism
Follow-up & Assessment
Assess the panel contribution (balance, concession, evaluation) and the research essay (synthesis, register, sourcing). Extension: a case study of one technology that is both problem and solution.
Use legal-academic register, rhetorical appeals (ethos, pathos, logos), and complex conditionals to argue a case in a simulated tribunal.
Examine whether the present generation owes an enforceable duty of care to future generations, drawing on real climate litigation.
Approach
A mock tribunal grounded in simulation pedagogy and critical discourse analysis. Learners argue a real legal question in an authentic legal register, drawing on landmark climate litigation such as the Urgenda case.
Procedure
Target Language
Legal register: the burden of proof, a duty of care, to hold accountable, on the grounds that · Rhetorical appeals: ethos / pathos / logos · Conditionals: had the state acted, the harm would not have… · Vocabulary: intergenerational equity, liability, precedent, accountability, standing
Follow-up & Assessment
Assess the tribunal submission (legal register, rhetorical appeals, use of precedent) and the position paper. Extension: research a current climate lawsuit and evaluate its prospects.
Use diplomatic register, the language of negotiation and concession, and mediation to represent a position and reach a negotiated outcome.
Understand the competing interests, trade-offs, and coalition-building that shape international environmental agreements.
Approach
A simulated international environmental negotiation modelled on inter-governmental summit format. Learners represent delegations with distinct interests and must negotiate toward a joint communiqué — the register of diplomacy in action.
Procedure
Target Language
Diplomatic register: my delegation is of the view that…, we would be prepared to…, with respect, we cannot accept… · Negotiation: concession, common ground, in principle, subject to · Vocabulary: multilateralism, ratification, binding commitment, common but differentiated responsibilities, communiqué
Follow-up & Assessment
Assess the delegation's performance (register, negotiation, mediation) and the quality of the final communiqué. Extension: compare the simulated outcome with a real agreement such as the Paris Accord.
Use AI and source literacy to critically evaluate machine-generated content, and mediation to teach complex material to a different-level audience.
Investigate the e-waste crisis — planned obsolescence, rare earth extraction, the right to repair — and propose community-level solutions.
Approach
A multi-lesson TBL/CLIL/PBL module foregrounding AI literacy. Learners research with AI assistance, then critically evaluate the AI's own output for bias, assumption, and omission — a defining C2 mastery competence — before teaching what they learn to a B1–B2 audience.
Procedure
Target Language
Critical evaluation: the response privileges…, it tacitly assumes…, it omits any mention of… · Mediation: to put this more simply…, in other words, for a general audience… · Vocabulary: e-waste, planned obsolescence, rare earth elements, right to repair, WEEE Directive, digital carbon footprint
Follow-up & Assessment
Assess the critical annotation of AI text, the peer-teaching presentation (accuracy, register-adaptation), and the action plan. Extension: audit and report on the class's own device replacement habits.
Use diplomatic rhetoric and critical-evaluative language to assess the record of international climate agreements and defend a judgement on them.
Evaluate whether landmark climate agreements have succeeded or failed, and why global climate governance is so difficult.
Approach
A UN-summit and critical-evaluation format. Learners inhabit the politics of international climate agreements, then step back to deliver a reasoned verdict on whether the regime has succeeded — diplomacy meeting critical judgement.
Procedure
Target Language
Diplomatic rhetoric: a landmark yet flawed accord, honoured more in the breach…, a qualified success · Critical evaluation: the agreement fell short of…, its significance lies less in… than in… · Vocabulary: ratification, non-binding, emissions target, climate finance, enforcement mechanism, common but differentiated responsibilities
Follow-up & Assessment
Assess the summit contribution (diplomatic register, evidence) and the evaluative essay (balanced judgement, defensible verdict). Extension: evaluate the most recent COP outcome against the module's criteria.
Differentiation & Inclusion
Even at C2, learners differ in confidence with specialised register, sustained argument, and performance under simulation. These strategies keep everyone engaged while stretching the most able toward genuine mastery.
Supporting Learners Who Need It
- Provide register models. Sample tribunal submissions, diplomatic phrasings, and annotated AI critiques give learners authentic exemplars to work from before they perform.
- Pre-load the case. Legal briefs, delegation dossiers, and fact sheets mean learners argue from supplied material rather than generating specialised content and register at once.
- Assign roles by demand. Chair, rapporteur, lead advocate, and fact-checker distribute the load across a simulation and give each learner a defined, achievable contribution.
- Scaffold the write-up. Genre frames for the position paper, communiqué, and evaluative essay support learners in producing sophisticated written outcomes.
Stretching the Strongest
- Demand register precision. Require accurate legal, diplomatic, or scientific register — and hold learners to the nuance and understatement C2 permits.
- Interrogate the sources. Ask them to evaluate the framing and reliability of every source, including AI output, and to argue with the gaps they find.
- Take the harder role. Assign the least sympathetic delegation or the weaker side of the case, and require a compelling argument regardless.
Assessment Tools
Assessment across the C2 toolkit is criteria-referenced and register-aware, valuing precision, nuance, and critical judgement as the marks of mastery.
What to Look For
🗣 Simulation Performance
- Controls a specialised register (legal / diplomatic)
- Concedes and qualifies with precision
- Negotiates, mediates, and reconciles positions
- Uses rhetoric with nuance, not excess
✏️ Writing (paper / communiqué / essay)
- Genre and register precisely matched to task
- Sophisticated, well-supported argument
- Accurate complex and counterfactual structures
- Nuanced, defensible judgement
📖 Critical & Source Literacy
- Detects framing, bias, and omission
- Evaluates AI-generated content critically
- Synthesises multiple, complex sources
🌍 Reasoning & Mediation
- Weighs competing interests and values
- Adapts complex content for other audiences
- Reaches a nuanced, defensible verdict
Built-in Evidence
Each activity yields a demanding assessment artefact: the research essay (Activity 1), the tribunal submission and position paper (Activity 2), the negotiated communiqué (Activity 3), the AI-text critique, peer-teaching presentation, and action plan (Activity 4), and the evaluative essay/briefing (Activity 5). Together they form a portfolio of C2 environmental discourse across specialised genres.
Vocabulary & Language Banks
The core lexis for each activity, with a C2-level example sentence modelling the target specialised register. Project these during production or hand them out as reference cards.
Shared Functional Language (C2)
Tasks & Interaction Bank
The interactive task types used across the five activities, gathered so you can borrow a format for any C2 environmental lesson. At C2 the format is a professional arena; the register is the performance.
Cross-Partner Best Practices
Recurring principles that made these C2 activities work across different classrooms and countries.
- 1Set genuinely demanding content. Justice, diplomacy, and technological paradox give mastery-level learners material worthy of their range.
- 2Simulate real arenas. Tribunals, summits, and peer-teaching sessions demand authentic professional registers and reward precision over volume.
- 3Make critical & AI literacy explicit. Evaluating sources — including machine-generated text — for bias and omission is now part of what C2 mastery means.
- 4Prize nuance over assertion. The C2 move is concession, qualification, and understatement — reward the argument that acknowledges its own limits.
- 5Foreground mediation. Adapting complex content for other audiences and reconciling opposing positions are central mastery skills, not afterthoughts.
- 6Ground argument in real cases. Urgenda, the Paris Accord, the e-waste crisis — authentic material raises the stakes and the standard.
- 7End in reasoned judgement. The aim is not to win but to reach and defend a nuanced verdict — critical mastery in the service of environmental citizenship, in the spirit of GreenComp.
References & Sources
Frameworks and authentic materials drawn on across the C2 activities.
Frameworks
- Bianchi, G., Pisiotis, U., & Cabrera Giraldez, M. (2022). GreenComp: The European sustainability competence framework. Publications Office of the European Union.
- Council of Europe. (2020). Common European Framework of Reference for Languages: Learning, teaching, assessment — Companion volume. Council of Europe Publishing.
- United Nations. (2015). Transforming our world: The 2030 Agenda for Sustainable Development (Sustainable Development Goals 9, 12, 13, 16 & 17). United Nations.
Authentic Classroom Sources
- Urgenda Foundation v. State of the Netherlands (2019). Supreme Court of the Netherlands. (Activity 2, case material)
- United Nations. Paris Agreement (2015) & UNFCCC process. United Nations Framework Convention on Climate Change. (Activities 3 & 5)
- WEEE Directive (2012/19/EU) & global e-waste monitoring. European Union / UN partners. (Activity 4)
Co-funded by theEuropean Union
